Lester Bowles "Mike" Pearson PC OM CC OBE (23 April 1897 - 27 December 1972) was a Canadian statesman, diplomat and politician who won the Nobel Peace Prize in 1957. He was also the fourteenth Prime Minister of Canada from April 22, 1963, until April 20, 1968, as the head of two back-to-back minority governments following elections in 1963 and 1965